We created a Ubuntu 14.04.1 LTS x64 OSM tile server from packages using the excellent instructions provided by http://switch2osm.org/serving-tiles/building-a-tile-server-from-packages/
The tile server is running well and serving tiles of Kansas USA.
We now would like to set the scale_factor for MAPNIK in order to improve the appearance of tiles on displays with high DPI.
Following various instructions, we located renderd.conf (i.e. /etc/renderd.conf) but cannot locate renderd.py or generate_tiles.py
Are either of these files included with an install using the repository ppa:kakrueger/openstreetmap?
If so, let us know where. If not, tell us if it is possible to add them, and how it might be done.